Chemical Resistance
Definition
Ability to resist degradation from acids, alkalis, solvents, and oils.
Historical Background
1970s: fluoroelastomers and silicones expanded chemical adaptability.
Example
Lab tape contacts alcohol/acetone. Ordinary dissolves; resistant stays intact.
Formula
Chemical Resistance = f(Polymer Type, Crosslink Density, Additives)
Core Concepts
Molecular structural stability: C-F, Si-O bonds are key for resistance.
Extended Applications
Acid: chemical plants; alkali: paper mills; solvent: labs; oil: auto factories.